Sophia Blog


About Sophia and other things we've built.

Moving parts are important to accuracy

When we started to design Sophia 3d printer, we had at least one goal: accuracy.
As a 3d printer, everyone wanted it to be more accurate. Without precision, printed parts became unusable. So this...


Designing the new controller Part Two

This post, I would like to talk about the details of the controller board. There were lots of different boards on the market. But we will design the board that has lots of differences.

The brain:...


Designing the new controller Part One

To reduce the costs of the controller, I chose an avr chip as the MCU of the controller. The chip is ATmega1284P; it's not the best AVR chip out there. But the functionalities and the CPU power...


Printing and fully assembly DP log 2016-5-28

The printer was working. We've printed some models to test the Sophia. We thought it was awesome. And we must get a full assembly machine. So we will move the controller board to the inside of...


The prototype is printing DP log 2016-5-25

Today is a busy day. All the parts arrived. So we started to assembling all the new parts. Some of the parts had defects, so small modifications were made if necessary.

Lee was doing the mechanical...


About finishing technologies used in Sophia DP log 2016-5-24

There are dozens of finishing technologies can be used for different use cases. If you are not a tech guy, that's ok; you can skip this post. One important thing you should know is that the...


Assembly the frame DP log 2016-5-23

OK, today, we went to the factory again, and have some good news. We assembled the frame, yeah!!

It's been 20 days from the beginning of the manufacturing. We've spent lots of time on...


Curiosity is the beginning of innovations, the design of our filament holder

We've always been curious about something we don't know. When I noticed some new technology, I want to know how that is doing behind the scene. And curiosity also applies to our product...


The problems of my Mendel printer and most other 3d printers

Mendel is my first printer back to 2013; I love it. But quickly, I found lots of inconveniences when using my printer, and those problems are very common.

As a maker, I like to tear things down and...


Memories of my first 3d printer, Mendel.

I wanted and needed a 3d printer.
Searching around the Google and Youtube, there are so many cool things 3d printer can build. I was so eager to have one. So I bought one from online in 2013. The...